Subject: RE: [Sip] Poll: Proposal relating to keepalive, TCP, and UDP usag e in draft-ietf-sip-outbound

From: "Elwell, John" <[email-masked]>
Date: Mon, 11 Dec 2006 08:20:45 +0000

Yes to all.

John 

> -----Original Message-----
> From: Dean Willis [mailto:[email-masked]] 
> Sent: 09 December 2006 02:12
> To: SIP IETF
> Subject: [Sip] Poll: Proposal relating to keepalive, TCP, and 
> UDP usage in draft-ietf-sip-outbound
> 
> Previously we had recorded consensus to use STUN for keepalive with  
> both TCP and UDP. This was not a perfect consensus (there were some  
> dissenters). There has been ongoing discussion notably instigated by  
> the current editor of the Outbound draft, that some people feel may  
> have resulted in a change of the consensus on this draft's technical  
> direction.
> 
> So I'd like to ask people who care and think they understand the  
> differences to answer the following questions, on-list and on-the  
> record.
> 
> 
> Proposal 1: Make CRLF the only keepalive mechanism for TCP and TLS  
> over TCP flow (retain STUN for UDP flows).
> 
> Yes (accept the proposal and use CRLF for TCP) or No (reject the  
> proposal and keep STUN for TCP)
> 
> 
> Proposal 2: Make outbound registrations over UDP flows 
> optional for UAs.
> 
> Yes (Accept the proposal) or No (Reject the proposal).
> 
> 
> Proposal 3: Include (in Outbound) the statement that its is  
> RECOMMENDED that the outbound-proxy-set is configured to result in  
> registrations over TCP or TLS whenever the UA can't accept incoming  
> TCP flows. Further, include text that explain that for historical  
> purposes a lot of deployments still only use UDP, but that we expect/ 
> hope those deployments to eventually migrate to TCP when 
> doing outbound.
> 
> Yes (Accept the proposal and add the text) or No (Reject the 
> proposal  
> and keep the text as-is).
> 
> 
> --
> Dean Willis (wearing his chair sombrero)
> 
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